US20230112949A1 - Pull strap connector and assembly thereof with improved locking features - Google Patents

Pull strap connector and assembly thereof with improved locking features Download PDF

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Publication number
US20230112949A1
US20230112949A1 US17/958,829 US202217958829A US2023112949A1 US 20230112949 A1 US20230112949 A1 US 20230112949A1 US 202217958829 A US202217958829 A US 202217958829A US 2023112949 A1 US2023112949 A1 US 2023112949A1
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US
United States
Prior art keywords
pull strap
ejector rod
groove
mating
end wall
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Pending
Application number
US17/958,829
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English (en)
Inventor
Rongzhe Guo
YiHeng LIN
Hongji Chen
Yang Xu
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Luxshare Technologies International Inc
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Dongguan Luxshare Technology Co Ltd
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Filing date
Publication date
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Assigned to DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD reassignment DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, HONGJI, GUO, RONGZHE, LIN, YIHENG, XU, YANG
Publication of US20230112949A1 publication Critical patent/US20230112949A1/en
Assigned to LUXSHARE TECHNOLOGIES INTERNATIONAL, INC. reassignment LUXSHARE TECHNOLOGIES INTERNATIONAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716—Coupling device provided on the PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6275—Latching arms not integral with the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/771—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members

Definitions

  • the present disclosure relates to both a pull strap connector and a pull strap connector assembly, belonging to the technical field of connectors.
  • a pull strap connector assembly generally includes a pull strap connector and a mating connector engaged with the pull strap connector.
  • the pull strap connector includes an insulating housing, a plurality of conductive terminals, a locking piece and a pulling strap.
  • the conductive terminals are received in the insulating housing.
  • the locking piece is located on one side of the insulating housing.
  • the pulling strap is connected with the locking piece.
  • the locking piece includes a hook and so the hook is located on one side of the insulating housing, too.
  • the mating connector includes a slot and the slot is matched with the hook.
  • the single-side locking design has weak retention force between the pull strap connector and the mating connector, and therefore, looseness easily occurs between the pull strap connector and the mating connector, which affects data transmission.
  • An object of the present disclosure is to provide a pull strap connector with strong retention force to engage with a mating connector, and also provide a pull strap connector assembly comprising a pull strap connector and a mating connector engaged with the pull strap connector.
  • the pull strap connector adapted for mating with a mating connector along a mating direction.
  • the pull strap connector comprises an insulating housing, a plurality of conductive terminals, a movable element, an elastic member abutting against the movable element, and a pull strap connected with the movable element.
  • the insulating housing comprises a main body and a tongue plate protruding from the main body along the mating direction.
  • the main body comprises a first end wall and a second end wall opposite to the first end wall.
  • Each conductive terminal comprises a mating portion exposed to the tongue plate.
  • the movable element is at least partially installed on the main body.
  • the movable element comprises at least one first locking protrusion protruding forward from the first end wall for engaging with a first locking hole of the mating connector.
  • the movable element comprises at least one ejector rod extending from the first end wall back to the second end wall and rear end of the ejector rod is exposed out of the second end wall.
  • the movable element further comprising at least one second locking protrusion on the rear end of the ejector rod.
  • the second locking protrusion protrudes forward and spaced to the second end wall for engaging with a second locking hole of the mating connector.
  • the pull strap is configured to drive the movable element to overcome the force of the elastic member so that the movable element moves along a front-back direction perpendicular to the mating direction.
  • the present disclosure also discloses a pull strap connector assembly comprising a pull strap connector and a mating connector.
  • the pull strap connector comprises an insulating housing, a plurality of conductive terminals, a movable element, an elastic member abutting against the movable element, and a pull strap connected with the movable element.
  • the insulating housing comprises a main body and a tongue plate protruding from the main body along the mating direction.
  • the main body comprises a first end wall and a second end wall opposite to the first end wall.
  • Each conductive terminal comprises a mating portion exposed to the tongue plate.
  • the movable element is at least partially installed on the main body.
  • the movable element comprises at least one first locking protrusion protruding forward from the first end wall.
  • the movable element comprises at least one ejector rod extending backwardly from the first end wall to the second end wall. Rear end of the ejector rod is exposed out of the second end wall.
  • the movable element further comprises at least one second locking protrusion formed at the rear end of the ejector rod. The second locking protrusion protrudes forwardly towards the second end wall.
  • the mating connector comprises a mating housing, a plurality of mating terminals fixed on the mating housing, and a metal shell covering the mating housing.
  • the mating housing defines a mating slot receiving the tongue plate of the pull strap connector.
  • Each mating terminal comprises an elastic mating arm extending into the mating slot.
  • the elastic mating arm contact with the mating portion of the pull strap connector.
  • the metal shell comprises a first side wall and a second side wall opposite to the first side wall.
  • the second side wall comprises an insertion plate portion.
  • the metal shell further comprises a first locking hole defined on the first side wall and a second locking hole defined on the second side wall. The first locking protrusion is engaged in the first locking hole and the second locking protrusion is engaged in the second locking hole.
  • the movable element moves along a front-back direction perpendicular to the mating direction, when a force is formed on the pull strap which drives the movable element to overcome the force of the elastic member, so that the first locking protrusion is disengaged from the first locking hole and the second locking protrusion is disengaged from the second locking hole.
  • the present disclosure can realize double-side locking purpose, thereby improving the retention force between the pull strap connector and the mating connector. The risk of loosening of the pull strap connector and the mating connector is reduced.
  • FIG. 1 is a perspective, assembled view of a pull strap connector assembly comprising a pull strap connector and a mating connector in accordance with an embodiment of the present disclosure
  • FIG. 2 is another perspective, assembled view of the pull strap connector assembly of FIG. 1 ;
  • FIG. 3 is a back view of FIG. 1 ;
  • FIG. 4 is a perspective, exploded view of the pull strap connector assembly of FIG. 1 ;
  • FIG. 5 is another perspective, exploded view of the pull strap connector assembly of FIG. 1 ;
  • FIG. 6 is a right side view of a state where the mating connector excluding the circuit board is mated with the pull strap connector;
  • FIG. 7 is a right side view of a state where the mating connector excluding the circuit board is separated from the pull strap connector;
  • FIG. 8 is a perspective, further exploded view of the pull strap connector assembly of FIG. 1 ;
  • FIG. 9 is a perspective, further exploded view of the pull strap connector of FIG. 8 ;
  • FIG. 10 is a perspective, further exploded view of the pull strap connector of FIG. 9 ;
  • FIG. 11 is a top view of the pull strap connector of FIG. 4 ;
  • FIG. 12 is a schematic cross-sectional view taken along the line D-D in FIG. 6 ;
  • FIG. 13 is a perspective, further exploded view of the mating connector of FIG. 8 ;
  • FIG. 14 is a perspective, exploded view of the mating housing and the mating terminal in FIG. 13 ;
  • FIG. 15 is a schematic cross-sectional view taken along the line E-E in FIG. 2 .
  • first”, “second” and similar words used in the specification and claims of this application do not represent any order, quantity or importance, but are only used to distinguish different components.
  • an or “a” and other similar words do not mean a quantity limit, but mean that there is at least one; “multiple” or “a plurality of” means two or more than two.
  • front”, “rear”, “lower” and/or “upper” and similar words are for ease of description only and are not limited to one location or one spatial orientation.
  • the present disclosure discloses a pull strap connector assembly, which includes a pull strap connector 100 and a mating connector 200 matched with the pull strap connector 100 .
  • the pull strap connector 100 is a cable end connector and the mating connector 200 is a board end connector.
  • the pull strap connector 100 is matched with the mating connector 200 along an upper-lower mating direction (shown as B) to realize data transmission.
  • the pull strap connector 100 includes an insulating housing 1 , a plurality of conductive terminals 2 fixed in the insulating housing 1 , a movable element 3 installed on the insulating housing 1 , an elastic member 4 abutting against the movable element 3 , a cable 5 electrically connected to the conductive terminals 2 , a cover plate 6 that is fastened on the insulating housing 1 and at least partially abuts the cable 5 , and a pull strap 7 connected with the movable element 3 .
  • the pull strap 7 is configured to drive the movable element 3 to overcome the force of the elastic member 4 , so that the movable element 3 moves along a front-back moving direction (shown as C) perpendicular to the mating direction in FIG. 4 .
  • the insulating housing 1 includes a main body 11 , a tongue plate 12 which protrudes downward from the main body 11 along the mating direction, and a positioning plate 13 which protrudes downward from the tongue plate 12 along the mating direction B.
  • the dimension of the main body 11 in the front-back direction, the dimension of the tongue plate 12 in the front-back direction, and the dimension of the positioning plate 13 in the front-back direction are successively smaller, so that the insulating housing 1 is roughly stepped.
  • the positioning plate 13 includes a first positioning piece 131 located in the middle, a second positioning piece 132 located on one side of the first positioning piece 131 , and a third positioning piece 133 located on the other side of the first positioning piece 131 .
  • the second positioning piece 132 is spaced apart from the first positioning piece 131 and the third positioning piece 133 is spaced apart from the first positioning piece 131 too.
  • the dimension of the first positioning piece 131 along a left-right direction is larger than the dimension of the second positioning piece 132 along the left-right direction, and the dimension of the first positioning piece 131 along the left-right direction is also larger than the dimension of the third positioning piece 133 along the left-right direction. It is known that, the left-right direction is perpendicular to both the upper-lower direction and front-back direction.
  • the distance between the first positioning piece 131 and the second positioning piece 132 is different from the distance between the first positioning piece 131 and the third positioning piece 133 . This arrangement prevents the pull strap connector 100 from being inserted into the mating connector 200 at a wrong angle, so that a certain foolproof effect can be achieved.
  • the main body 11 includes a first end wall 111 (e.g, a front end wall) and a second end wall 112 (e.g, a rear end wall) opposite to the first end wall 111 .
  • the main body 11 further includes a receiving space 110 penetrating the first end wall 111 forward, a first receiving groove 113 located on one side (e.g, the left side) of the receiving space 110 , and a second receiving groove 114 located on the other side (e.g, the right side) of the receiving space 110 .
  • the receiving space 110 does not penetrate the second end wall 112 backward.
  • the main body 11 includes an inner wall surface 115 exposed to the receiving space 110 .
  • the first receiving groove 113 and the second receiving groove 114 penetrate through the second end wall 112 along the moving direction C.
  • the main body 11 includes a top surface 116 , an opening 1160 extending upward through the top surface 116 , a first mounting hole 1161 extending upward through the top surface 116 and located on one side of the opening 1160 , and a second mounting hole 1162 extending upward through the top surface 116 and located on the other side of the opening 1160 .
  • the main body 11 further includes a fixing plate 117 located between the first end wall 111 and the second end wall 112 .
  • the fixing plate 117 is a vertical plate.
  • the fixing plate 117 includes a pull strap groove 1170 passing through along the moving direction C, and a pull strap shaft 1171 located between the edge (e.g, the upper edge) of the fixing plate 117 and the pull strap groove 1170 .
  • the pull strap 7 extends from the connection between the pull strap 7 and the movable element 3 along the moving direction C, the pull strap 7 passes through the pull strap groove 1170 , and the pull strap 7 wraps around the pull strap shaft 1171 and extends out of the main body 11 .
  • the fixing plate 117 further includes at least one receiving hole 1172 .
  • the number of the receiving holes 1172 is two.
  • the receiving holes 1172 are exposed on the surface of the fixing plate 117 and face towards the movable element 3 .
  • One end of the elastic member 4 is disposed in the receiving hole 1172 and the other end of the elastic member 4 abuts against the movable member 3 .
  • the tongue plate 12 includes a first surface 121 and a second surface 122 disposed opposite to each other.
  • each conductive terminal 2 includes a mating portion 21 exposed to the tongue plate 12 and a connection portion 22 electrically connected to the cable 5 .
  • the mating portion 21 is in the shape of a flat plate and is exposed to the first surface 121 and the second surface 122 respectively.
  • the conductive terminals 2 are insert-molded on the insulating housing 1 .
  • the conductive terminals 2 can also be directly mounted on the insulating housing 1 ; or in a third embodiment, the conductive terminals 2 and the insulating block are first combined into a terminal module, and then the terminal module are mounted on the insulating housing 1 .
  • the fixing method of the conductive terminals 2 and the insulating housing 1 is well known to those persons skilled in the art, and will not be described in detail in the present disclosure.
  • the cable 5 extends beyond the main body 11 along the moving direction C.
  • the movable element 3 is at least partially installed in the main body 11 .
  • the movable element 3 includes a base 31 , a first ejector rod 32 extending backward from one side of the base 31 , and a second ejector rod 33 extending backward from the other side of the base 31 .
  • the base 31 is accommodated in the receiving space 110 .
  • Most of the first ejector rod 32 is accommodated in the first receiving groove 113 and just the rear end of the first ejector rod 32 extends out of the first receiving groove 113 .
  • Both the first ejector rod 32 and the second ejector rod 33 can be referred to as ejector rods, such ejector rods extend from the first end wall 111 to the second end wall 112 with the rear ends thereof protrude from the second end wall 112 .
  • the base 31 includes two first locking protrusions 301 respectively located on two sides (e.g, left and right) of the base 31 , so as to improve the mating retention force.
  • the first locking protrusions 301 are integrally formed with the main body 11 .
  • the first locking protrusions 301 can also be manufactured separately from the main body 11 , and then assembled and fixed together.
  • the first locking protrusions 301 can be made of a material different from that of the main body 11 , for example, a wear-resistant material with better structural strength.
  • the base 31 further includes a pull strap connecting portion 312 , and the pull strap 7 is connected to the pull strap connecting portion 312 .
  • the movable element 3 includes a transverse slot 311 extending through the base 31 along the moving direction C.
  • the pull strap connecting portion 312 is located above the transverse slot 311 .
  • the pull strap connecting portion 312 is similar to a shaft portion, and is located between the transverse slot 311 and the edge (e.g, the upper edge) of the base 31 .
  • One end of the pull strap 7 passes through the transverse slot 311 and is sleeved around the pull strap connecting portion 312 .
  • the first locking protrusion 301 can be only one and the only one first locking protrusion 301 protrudes forward from a middle part of the first end wall 111 , which has same distances to both the left-front side of the base 31 and the right-front side of the base 31 .
  • the elastic member 4 is a compression spring installed between the base 31 and the inner wall surface 115 of the main body 11 .
  • the number of the compression springs is two, and the two compression springs are arranged side by side to improve the stability of the moving part 3 when moving.
  • the base 31 is further provided with a positioning post 313 which is at least partially inserted into the compression spring.
  • the movable element 3 further includes a second locking protrusion 302 protruding backward from the second end wall 112 .
  • the number of the second locking protrusions 302 is two.
  • One of the second locking protrusions 302 is located at the rear end of the first ejector rod 32 away from the base 31 .
  • the one of the second locking protrusions 302 is located outside the first receiving groove 113 .
  • the one of the second locking protrusions 302 protrudes toward the first receiving groove 113 .
  • the other one of the second locking protrusions 302 is located at the rear end of the second ejector rod 33 away from the base 31 .
  • the other one of the second locking protrusions 302 is located outside the second receiving groove 114 .
  • the other one of the second locking protrusions 302 protrudes toward the second receiving groove 114 .
  • the two second locking protrusions 302 are arranged in such a manner to improve an engagement force.
  • the second locking protrusion 302 is integrally formed with the corresponding ejector rod to save cost.
  • the second locking protrusion 302 can also be produced separately from the corresponding ejector rod, and then assembled and fixed together.
  • the second locking protrusion 302 can be made of a different material from that of the ejector rod.
  • the first locking protrusions 301 and the second locking protrusions 302 are used for engaging with the locking holes of the mating connector 200 to improve the engagement force.
  • the two first locking protrusions 301 and the two second locking protrusions 302 are both arranged on the left side and the right side of the pull strap connector, the present disclosure can realize double-side locking purpose, thereby improving the retention force between the pull strap connector and the mating connector.
  • the only one first locking protrusion 301 is arranged on the middle part of the pull strap connector and the two second locking protrusions 302 are arranged on the left side and the right side of the pull strap connector, can also realize double-side locking purpose, thereby improving the retention force between the pull strap connector and the mating connector.
  • the first ejector rod 32 includes a first limiting groove 320 in the middle, a first limiting surface 321 located at one end of the first limiting groove 320 along the moving direction C, and a second limiting surface 322 is located at the other end of the first limiting groove 320 along the moving direction C. Compared with the second limiting surface 322 , the first limiting surface 321 is closer to the first end wall 111 .
  • the second ejector rod 33 includes a second limiting groove 330 in the middle, a third limiting surface 331 located at one end of the second limiting groove 330 along the moving direction C, and a fourth limiting surface 332 is located at the other end of the second limiting groove 330 along the moving direction C.
  • the third limiting surface 331 is closer to the first end wall 111 .
  • the first ejector rod 32 further includes a first concave groove 324 located at the distal end (rear end), and the second ejector rod 33 further includes a second concave groove 334 located at the distal end (rear end).
  • Both the first concave groove 324 and the second concave groove 334 are referred to as groove portions.
  • Each groove portion has a first blocking wall 303 (e.g, a rear blocking wall), a second blocking wall 304 (e.g, a front lower blocking wall) and a third blocking wall 305 (e.g, a front upper blocking wall).
  • the second blocking wall 304 is located below the first blocking wall 303 to face the first blocking wall 303 .
  • the third blocking wall 305 is located above the first blocking wall 303 to face the first blocking wall 303 .
  • a large-diameter portion (not numbered) is formed between the first blocking wall 303 and the second blocking wall 304
  • a small-diameter portion (not numbered) is formed between the first blocking wall 303 and the third blocking wall 305 .
  • the dimension of the small-diameter portion in the front-back direction is smaller than the dimension of the large-diameter portion in the front-back direction.
  • the groove portion penetrates vertically and includes the small-diameter portion and the large-diameter portion, and the small-diameter portion exists according to the manufacturing process of the groove portion; in another embodiment, the groove portion does not include the small-diameter portion and only includes the large-diameter portion, so that when the insertion plate portion 8321 is accommodated in the groove portion which only includes the large-diameter portion, the groove portion can move together with the movable member 3 in the front-back direction, and the second locking protrusion 302 can be inserted into the second locking hole 8322 of the insertion plate portion 8321 for engagement.
  • the second locking protrusion 302 protrudes from the bottom of the first blocking wall 303 toward the second blocking wall 304 , and the second locking protrusion 302 is spaced from the second blocking wall 304 by a distance. Because the first locking protrusion 301 also protrudes from the rear to the front, the first locking protrusion 301 and the second locking protrusion 302 in the present disclosure have the same forward protruding direction. The forward protruding direction is opposite to the moving direction C.
  • the pull strap connector 100 includes a first pin 151 fixed in the first mounting hole 1161 and a second pin 152 fixed in the second mounting hole 1162 .
  • the first pin 151 is inserted into the first limiting groove 320 and the second pin 152 is inserted into the second limiting groove 330 .
  • the dimension of the first limiting groove 320 is larger than the dimension of the first pin 151 along the moving direction C.
  • the dimension of the second limiting groove 330 is larger than the dimension of the second pin 152 along the moving direction C.
  • the first limiting surface 321 is used for engaging with the first pin 151
  • the third limiting surface 331 is used for engaging with the second pin 152 , so as to prevent the movable element 3 from moving excessively along the moving direction C.
  • the second limiting surface 322 is used for engaging with the first pin 151
  • the fourth limiting surface 332 is used for engaging with the second pin 152 , so as to prevent the movable element 3 from returning excessively along the opposite direction of the moving direction C.
  • the cover plate 6 is accommodated and fixed in the opening 1160 of the main body 11 , and the pull strap 7 extends out of the cover plate 6 .
  • the cover plate 6 presses the connection between the cable 5 and the conductive terminals 2 (for example, the welding parts of the cable 5 and the conductive terminals 2 ), so as to play a protective role.
  • the mating connector 200 includes a mating housing 81 , a plurality of mating terminals 82 fixed on the mating housing 81 , and a metal shell 83 covering the mating housing 81 .
  • the mating housing 81 includes a bottom wall 811 and several sidewalls 812 perpendicular to the bottom wall 811 .
  • the bottom wall 811 defines a positioning groove 8110 for accommodating the positioning plate 13 .
  • the positioning groove 8110 includes a first positioning groove 8111 for accommodating the first positioning piece 131 , a second positioning groove 8112 for accommodating the second positioning piece 132 , and a third positioning groove 8113 for accommodating the third positioning piece 133 .
  • the first positioning groove 8111 , the second positioning groove 8112 and the third positioning groove 8113 all penetrate through the bottom wall 811 .
  • the mating connector 200 includes a terminal fixing block 84 and the mating terminals 82 are fixed on the terminal fixing block 84 .
  • the mating housing 81 includes a terminal accommodating groove 813 and the terminal fixing block 84 is fixed in the terminal accommodating groove 813 .
  • the terminal fixing block 84 includes a first engaging portion 841 .
  • One side of the terminal accommodating groove 813 includes a second engaging portion 8131 .
  • the first engaging portion 841 and the second engaging portion 8131 are engaged with each other, so that the terminal fixing block 84 is fixed in the terminal accommodating groove 813 .
  • the first engaging portion 841 is a dovetail-shaped bump and the second engaging portion 8131 is a dovetail-shaped groove matching the dovetail-shaped bump.
  • the number of the terminal fixing blocks 84 is two and the two terminal fixing blocks 84 are symmetrical and spaced apart from each other.
  • the mating terminals 82 are arranged in two symmetrical rows and the two rows of mating terminals 82 are respectively fixed on the two terminal fixing blocks 84 .
  • the two terminal accommodating grooves 813 are symmetrical and spaced apart from each other.
  • the two terminal accommodating grooves 813 are respectively formed between the bottom wall 811 and the two opposite sidewalls 812 .
  • the two terminal fixing blocks 84 are fixed in the two terminal accommodating grooves 813 .
  • Each of the terminal fixing blocks 84 includes a plurality of first engaging portions 841 .
  • each of the terminal accommodating grooves 813 includes a plurality of second engaging portions 8131 corresponding to the plurality of first engaging portions 841 respectively.
  • Each of the first engaging portions 841 and the corresponding second engaging portions 8131 are engaged with each other, so that each terminal fixing block 84 is fixed in the corresponding terminal accommodating groove 813 .
  • the first engaging portions 841 are respectively disposed on the sides of the two terminal fixing blocks 84 facing each other.
  • the second engaging portions 8131 are respectively disposed on opposite sides of the bottom wall 811 facing the two terminal accommodating grooves 813 .
  • the sidewalls 812 define a mating slot 8120 for receiving the tongue plate 12 .
  • the mating terminals 82 are arranged in two rows.
  • the mating terminals 82 include elastic mating arms 821 and mounting tails 822 .
  • the mounting tails 822 are used for mounting on a circuit board 300 .
  • the elastic mating arms 821 extend into the mating slot 8120 for contacting with the mating portion 21 .
  • the metal shell 83 includes a first side wall 831 , a second side wall 832 , a first connecting wall 833 , and a second connecting wall 834 .
  • the second side wall 832 is disposed opposite to the first side wall 831 .
  • the first connecting wall 833 connects one side of the first side wall 831 and one side of the second side wall 832 .
  • the second connecting wall 834 connects the other side of the first side wall 831 and the other side of the second side wall 832 .
  • the first side wall 831 includes a first locking hole 8311 engaged with the first locking protrusion 301 .
  • the second side wall 832 includes an insertion plate portion 8321 at a corner near the first connecting wall 833 and a corner near the second connecting wall 834 . That is to say, each of the left and right sides of the second side wall 832 includes an insertion plate portion 8321 .
  • the insertion plate portion 8321 includes a second locking hole 8322 matched with the second locking protrusion 302 .
  • the insertion plate portion 8321 is integrally formed on the second side wall 832 .
  • the insertion plate portion 8321 and the first connecting wall 833 are integrally formed and the insertion plate portion 8321 and the second connecting wall 834 are also integrally formed without any gap. Therefore, the insertion plate portion 8321 has no elasticity.
  • the positioning plate 13 is correspondingly accommodated in the positioning groove 8110
  • the tongue plate 12 is correspondingly accommodated in the mating slot 8120
  • the mating portions 21 of the conductive terminals 2 correspondingly contact with the elastic mating arms 821 of the butting terminals 82 .
  • the inclined surface of the first locking protrusion 301 abuts against the first side wall 831
  • the inclined surface of the second locking protrusion 302 abuts against the second side wall 832 .
  • the movable element 3 overcomes the force of the elastic part 4 and shrinks inward by a certain distance along the moving direction C.
  • first locking protrusion 301 moves downward to the first locking hole 8311 and the second locking protrusion 302 moves downward to the second locking hole 8322 , the elastic force of the elastic member 4 is released, so that the movable element 3 moves back in the direction opposite to the moving direction C.
  • the first locking protrusion 301 protrudes forward into the first locking hole 8311 and the second locking protrusion 302 protrudes forward and protrudes into the second locking hole 8322 , in order to realize the locking of the pull strap connector 100 and the mating connector 200 .
  • the operator applies an external force to pull the pull strap 7 , and the pull strap 7 generates a component force along the moving direction C, and the component force in this direction overcomes the force of the elastic member 4 , so that the movable element 3 moves along the moving direction C.
  • the first ejector rod 32 and the second ejector rod 33 move away from the insertion plate portion 8321 backwards, so that the second locking protrusion 302 and the second locking hole 8322 are disengaged from each other.
  • the first locking protrusion 301 and the first locking hole 8311 are also separated from each other. That is to say, the pull strap connector 100 and the mating connector 200 are unlocked on both sides.
  • the pull strap connector 100 can be pulled out of the mating connector 200 by applying other forces or by an upward component force exerted on the pull strap 7 .
  • the insertion plate portion 8321 is accommodated in the large-diameter portion of the groove portion in both the locked state of the pull strap connector 100 and the mating connector 200 and the unlocked state of the pull strap connector 100 and the mating connector 200 .
  • the movable member 3 drives the second locking protrusion 302 to move and the second locking protrusion 302 cooperates with the second locking hole 8322 , the insertion plate portion 8321 is in contact with the first blocking wall 303 , and the insertion plate portion 8321 is separated from the second blocking wall 304 .
  • the insertion plate portion 8321 is in contact with the second blocking wall 304 , and the insertion plate portion 8321 is separated from the first blocking wall 303 .
  • the present disclosure can realize double-side locking purpose by arranging the first locking protrusions 301 at the front side of the insulative housing 1 and the second locking protrusions 302 at the back side of the insulative housing 1 , thereby improving the retention force between the pull strap connector 100 and the mating connector 200 .
  • a number of the first locking protrusions 301 and a number of the second locking protrusions 302 are both two: both one of the first locking protrusions 301 and one of the second locking protrusions 302 are arranged at a left part of the insulative housing 1 ; both the other one of the first locking protrusions 301 and the other one of the second locking protrusions 302 are arranged at a right part of the insulative housing 1 . The risk of loosening of the pull strap connector 100 and the mating connector 200 is reduced.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US17/958,829 2021-10-12 2022-10-03 Pull strap connector and assembly thereof with improved locking features Pending US20230112949A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122460467.2U CN216413414U (zh) 2021-10-12 2021-10-12 拉带连接器及拉带连接器组件
CN202122460467.2 2021-10-12

Publications (1)

Publication Number Publication Date
US20230112949A1 true US20230112949A1 (en) 2023-04-13

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ID=81295982

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/958,829 Pending US20230112949A1 (en) 2021-10-12 2022-10-03 Pull strap connector and assembly thereof with improved locking features

Country Status (3)

Country Link
US (1) US20230112949A1 (zh)
CN (1) CN216413414U (zh)
TW (1) TWM628977U (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI778926B (zh) * 2022-04-12 2022-09-21 曼堤司高位股份有限公司 連接器之卡扣連動裝置
CN115939877A (zh) * 2023-01-19 2023-04-07 东莞立讯技术有限公司 连接器组件

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TWM628977U (zh) 2022-07-01

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